13. Three basic questions
• Are there differences in water quality
among invaded and non-invaded
wetlands?
• If there are differences, do they affect the
growth and survivorship of tadpoles?
• Do invasive plants affect the behavior of
adult frogs?
13
14. Three basic questions
• Are there differences in water quality
among invaded and non-invaded
wetlands?
14
15. Hypothesis 1 methods
• Natural wetlands- 2007, 2008, 2011
– Tested weekly over summer
– P. australis, T. angustifolia, non-invaded
(doubly invaded in 2007)
– LabPro datalogger
15
26. Larval growth and survival
• Natural wetlands- 2008, 2011
– Tested weekly over summer
– P. australis, T. angustifolia, non-invaded
– Small enclosures with separate individuals
26
50. Highlights
• More movements in non-invaded wetlands
• More time moving in non-invaded
wetlands
• More hang-ups in invaded wetlands
50
51. Summary of results
• Water chemistry different in invaded
wetlands
• Generally higher growth and survival in
non-invaded wetlands
• Differences in movement in invaded
wetlands
51
52. Future research
• Compare other invasive plants
• Invertebrate community effects
• Comparison with native relatives?
52
53. Acknowledgements
• Advisors- Oscar Rocha, Mark Kershner
• Committee- Ferenc de Szalay, Marilyn
Norconk, Allison Smith
• Funding- Graduate Student Senate, Kent
Environmental Council, Ohio Biological
Survey, Ohio Native Plant Society, Society
for the Study of Amphibians and Reptiles
53
Introduction- Frog declines, habitat loss/degradation, chytrid, etc.
Habitat loss/degradation as factor in species loss
Invasive plants as a form of habitat loss/degradation- explain what is habitat degradation, no net loss wetland policies,
Invasive plants=damn near ubiquitous
Interactions and possible interactions of invasive plants, divide this into separated animation sequence, summarize
Interactions and possible interactions of invasive plants, divide this into separated animation sequence, summarize
Interactions and possible interactions of invasive plants, divide this into separated animation sequence, summarize
Discuss Commelinid ecology
Native wetland for comparison
I would address one question at a time. Describe the methodology and summarize your results
I would address one question at a time. Describe the methodology and summarize your results, break into separate slide, repeat at beginning of sections.
Start with 2007, 2008, skip other parts. Start with chemical differences,
You may need to talk about your complexes here, before you show your data. Make sure you mention the analyses of variance that you did here.
Emphasize the fact that there are differences in water quality. Remember, it is not possible to say that the changes are caused by the plants or if the differences facilitate the invasion by different species of plants. Highlight significant differences- skip 2009-2011.
Insert an slide here to point out that there are differences in water quality, and ask if there are differences in larval growth and survival in these ponds. Use this to facilitate your transition to the new aspect of this work. I am not sure what the number mean here. Bring second question here.
I would address one question at a time. Describe the methodology and summarize your results, break into separate slide, repeat at beginning of sections.
Discuss Rana ecology
Repeat changes from water quality slide. Add slide with methods. Add picture of tadpole bar.
Transition to next slide
Describe growth rate and trends in changing growth rate, also temop.
Make sure you can separate the different studies, same info as WQ slide on changes. Add slide prior to this with bulleted summary
Interactions and possible interactions of invasive plants
Discuss Commelinid ecology
I would address one question at a time. Describe the methodology and summarize your results, break into separate slide, repeat at beginning of sections.
Do you have pictures of your arenas? Digging some up somewhere… (I take far too many photos)
Your X axis needs to be corrected. I would a different graph to show these results (see above). What does your analysis of variance indicates: no significant differences.
Your X axis needs to be corrected. I would a different graph to show these results (see above). What does your analysis of variance indicates: no significant differences. Add mean bars to graphs in dissertation.
Your X axis needs to be corrected. I would a different graph to show these results (see above). What does your analysis of variance indicates: no significant differences.
Your X axis needs to be corrected. I would a different graph to show these results (see above). What does your analysis of variance indicates: no significant differences. Add summary with bullet points.
Your X axis needs to be corrected. I would a different graph to show these results (see above). What does your analysis of variance indicates: no significant differences.
Your X axis needs to be corrected. I would a different graph to show these results (see above). What does your analysis of variance indicates: no significant differences.
Your X axis needs to be corrected. I would a different graph to show these results (see above). What does your analysis of variance indicates: no significant differences.
Your X axis needs to be corrected. I would a different graph to show these results (see above). What does your analysis of variance indicates: no significant differences.
Is there ready less movement? I when back to your paper, I think we need to examine your data analysis in more detail. For now let’s say they move less. Yes, I do need to go back to those stats. I think my eyes are permanently crossed when I did this presentation the first time. Mention other studies done in dissertation project.